Lighter than the original, the Atom SL Hoody is one of the most useful (and packable) pieces you can own. Wear it as a standalone layer when trail runs take you through cold, wet weather or layer it with a waterproof shell when mountain pursuits demand additional warmth and mobility. Breathable and weather-resistant, it has stretch insulation in the body but not the sleeves or hood — maximizing packability while still delivering focused warmth to your core.
Fit & Design:
Updated with recycled Fortius™ Air 20 fabric, recycled stretch synthetic insulation, and FC0 DWR finish for improved mobility and a lower footprint.
New Octa® Fleece side panels give enhanced breathability and less micro shedding.
The StormHood™ is now lined and no longer stowable.
Moisture-resistant outer face fabric
Breathable
Lightweight
Compressible and packable
Durable
Wind resistant
Ultralight
280g / 9.9 oz
FC0 DWR (Durable Water Repellent) finish repels moisture and is free from intentionally added PFAS
Brand : Arcteryx
Country of Origin : Imported
Web ID: 26ARCWCASUWTMSLHDYBOE
REVIEWS
4.6
90%
Recommended
46 Reviews
Emily
4 weeks ago
Atom Hoody
This is a great bit of gear that I wear most days out hiking and climbing (hood fits over helmet). Fits true to size and very comfortable. Would recommend!
MJaye
1 month ago
Versatile Jacket
Such a versatile jacket. Excellent warmth to weight ratio. I wear it as a standalone jacket in warmer weather and a layer in cooler weather. Fits well and is not bulky.
Amity
2 months ago
Go To Layer That Is Always In My Pack!
Perhaps my favorite layer! Packs down small enough to keep on my harness to wear at belays a multipitch but a little more warmth and insulation than a Squamish hoody or other ultralight windbreaker. Breaths well if wearing it while climbing or on the approach. I run warm and don't usually want a super heavy layer so this is my go to piece that I always have with me.
WAGirl
3 months ago
Perfect Soft Jacket
LOVE this jacket...it is so soft and is surprisingly warm for how light weight it is. Perfect for summer sailing in the PNW. I'm tall with long arms and the sleeves are a great length and I love the little angle detail in the cuff! I'm 5'10' 148# and the medium is perfect!
Celine
6 months ago
Just Perfect.
I LOVE this jacket. I use it touring, climbing, hiking, mountain biking. It's water resistant, water beads up, and is great for when it's snowing lightly on the uphill or sprinkling on a hike. Super lightweight and easy to throw in a pack as a just incase layer for mountain tops. also love that the hood has a small brim. I use this almost every day in the mountains. Super breathable too with the side panels under arms and love that the cuffs aren't tight so I can easily access my watch.
Lizz
7 months ago
Solid Shoulder Season Piece
Thinner than previous iterations of the Atom SL but certainly a good addition to quiver. The forearm material on the underside is very thin so I'm not sure I'd want to use this on a rock or rough surfaces but as far as general wear, hiking and other non contact mountain adventures this is excellent. The perfect shoulder season jacket to grab when running out the door. The new lightweight side mesh panels are excellent and feel sturdy. For reference the fit is just slightly loose yet fitted. Wearing a size medium, 5'6" 150lbs athletic build. Please bring back an ATOM SL vest in this material!
Irislazz
10 months ago
No Chest Pocket!
No chest pocket. So if you’re wearing a pack of vest the only pockets available are practically useless. This is a common thing on Arc’teryx ‘women’s’ items. Somehow I missed that in the pictures and was excited to get a piece this weight but will be returning it now.
MeineKleineLizzie
1 year ago
Sleeves Are Too Long.
I have two Atom Vests, which I love, so I thought I'd try the hoody. The sleeves were too long! If the elastic at the end of the sleeves went all the way around, I could make it work. But the elastic only went half way around, so there was no getting the sleeve ends out of the way. I had to return it. Another solution would be for Arcteryx to start carrying Petite sizes for women. Please consider it! That would make me soooo happy!
Celine
1 year ago
The One Jacket I Keep With At All Times!
My favorite jacket by far. I use it touring on the uphill, on cold days hiking in the fall, paddling when the air is crisp, mountain biking and long days on the road bike going over mountain passes. I also get a lot of compliments on the look of this jacket. One thing I love is when I'm using my watch for navigation this style of sleeve allows for the watch to be easily accessible. I wish the other Atom jackets had the same sleeve, as I would definitely buy them but the tightness around the wrist of the other Atom jackets makes it frustratingly impossible to use a watch. Super light weight and water resistant too! For reference I'm 5'8" 128lbs with small bust and it fits me perfectly.
mjane
1 year ago
A Year-round Staple
I had an older version of this and I love the updates. The fabric is stretchier and while still as warm, it has fewer seams and is somehow less bulky. This jacket stretches and moves really well (which is nice for someone with hips and for arm movements, especially when climbing). This lightweight hoody is my year-round go-to. In the summer, it's easy to throw on for a cold evening and in the colder seasons it's a great layer, especially for skinning. I have broad shoulders and generally wear a small in Arc'teryx jackets.
Mountainmind
1 year ago
Not To Be Dramatic But... I Can't Live Without It.
Hands down my year-round favorite insulation layer! I always reach for this, especially on shoulder-season adventures. It's super breathable, dries fast and packs small enough to fit in my mtb hip pack or running vest. I've been repping the anorak version of this for the last few years and love it even more than the original Atom!
dcuppers
1 year ago
Solid Lightweight Mid Layer
A good lightweight mid layer overall. The fit around the torso is a bit tight compared to the Proton Hoody.
Nevada C
1 year ago
Perfect Mid Layer
This jacket. is the perfect mid layer. The fabric is warm but also breathable and light weight. Plus I love a hood
Joey
1 year ago
Nice Hoodie But Was Light
Product is lighter than expected therefore was not as warm as expected. Size did not run true.
LisaT
1 year ago
Nice Jacket!
Nice looking. Very lightweight and packable. Fits large. I would give it 5 stars but the price is extremely high.